Dark data is the info stored but not used—think files and logs that pile up...

https://holdenssplendiddigests.zenbloomer.com/posts/what-should-we-delete-first-when-cleaning-up-dark-data

Dark data is the info stored but not used—think files and logs that pile up unseen. Around 55% of it just sits there, costing companies millions and creating noise that clutters AI projects